Dishwasher with improved treating agent dispenser mechanism



March 17, 1964 N. 1.. KENDT 3,

DISHWASHER WITH IMPROVED TREATING AGENT DISPENSER MECHANISM Filed Nov.5, 1961 3 Sheets-Sheet 1 INVENTOR. i NORMAN L. K/ENDT H \s ATTORNEYMarch 17, 1964 N. KENDT 3,125,249

DISHWASHER WITH IMPROVED TREATING AGENT DISPENSER MECHANISM Filed Nov.6, 1961 5 Sheets-Sheet 2 INVENTOR. NORMAN L. KEND H \S ATTOR NEY March17, 1964 N. 1.. KENDT 3,125,249

DISHWASHER WITH IMPROVED TREATING AGENT DISPENSER MECHANISM Filed Nov.3, 1961 s Sheet-Sheet s FIGS INVENTOR. NORMAN L. KENDT H \S ATTORNEY3,125,249 Patented Mar. 17., 1964 3 125 249 nrsrrwasrran wrrir nirrnovnnTREATmG AGENT DISPENSER MECHANISM Norman L. Kendt, Louisville, Ky.,assignor to General Electric Company, a corporation of New York FiledNov. 3, 1961, Ser. No. 149,891 8 Claims. (Cl. 222-70) The presentinvention relates to a dispenser mechanism for dispensing a treatingagent such as detergent into dishwashers, and more particularly to sucha mechanism for use in drop-door dishwashers wherein the access to thedishwasher is obtained by a front opening door which also forms part ofthe tub.

It is highly desirable in dishwashing machines to pro- .vide anautomatic dispensing structure which will prevent dispensing of atreating agent such as detergent until the desired time, and then willprovide complete dispensing of the detergent. Such structures may beoperated by many difierent means, and in commercial practice variousapproaches such as the use of a solenoid, the use of .the timerassembly, and the use of the weight of water have been used. I prefer,on the whole, to use the timer motor of the sequence control assembly toeffect the detergent dispensing since this provides accurate timing ,forthe dispensing operation, and also it eliminates the additional expenseand hazard of another electrical component such as a solenoid.

It is accordingly an object of my invention to provide an improveddetergent dispensing mechanism operated by .the sequence controlassembly motor of a dishwasher.

the dispensing operation is insured, and in addition the structure issuch that no food particles can drop into the detergent dispenser duringloading of the dishwashing machine.

In one aspect of my invention, I provide a dishwashing machine having awashing enclosure which includes a front closure member pivotable aboutits lower edge between a generally vertical closing position and agenerally horizontal open position. In addition, as usual, aconventional sequence control assembly, including a timer motor, isprovided for operating the machine to give a desired sequence ofoperation of the components of the machine. In this structure, .Iincorporate my improvement in treating agent dispensing systems. Cammeans is secured to the timer motor for operation thereby, and this cammeans operates cam follower means from a first position, to which thefollower means is biased, to a second position. The treating agentcontainer, mounted on the closure member, is also movable between firstand second positions. In its first position the container is accessiblefor deposition of agent in the enclosure when the closure member is inits vertical position, and is accessible for filling when the closuremember is in its horizontal position. In its second position, thecontainer encloses the agent so as to isolate it from the enclosure.

A one-way clutch connects the follower means to the container, causingthe container to be moved from its second position to its first positionwhen the follower means I is moved from its second position to its firstposition.

However, at other times, when the follower means is in its secondposition, the container is yieldably retained by suitable spring meansin its second position. In this manner, the structure is enclosed asdesired to prevent foodstuffs from dropping into the container whileloading dishes and to prevent contact of the treating agent by wateruntil the appropriate time; but at the same time, the container may beopened since it is only yieldably retained in this position.

The subject matter which I regard as my invention is particularlypointed out and distinctly claimed in the concluding portion of thisspecification. My invention, however, together with further objects andadvantages thereof, may best be understood by reference to the followingdescription taken in conjunction with the accompanying drawings.

In'the drawings,

FIGURE 1 is a fragmentary side elevational view, with some of the partsbroken away, of a dishwasher embodying my invention;

FIGURE 2 is also a fragmentary side elevational view of the dishwasherof FIGURE 1, with the front door open and substantially in full viewrather than in cross section;

FIGURE 3 is a plan view, looking down at the inner surface of the opendoor as shown in FIGURE '2, showing my improved treating agentdispenser;

FIGURE 4 is a View along line 4, 5'-4, 5 in FIGURE 1, showing the timeroperated camrning parts of my improved mechanism in a first position;

FIGURE 5 is also a View along line 4, 5-4, 5 in FIG- URE 1 showing thetimer operated camming parts in a second position;

(FIGURE 6 is a view along line 66 in FIGURE 4; an

FIGURE 7 is a view along line 7--7 in FIGURE 6.

I have shown, in FIGURE 1 of the drawings, a dishwasher generallyindicated by the numeral 1. Dishwasher 1 is of the type wherein acabinet 2 is provided which includes, in the conventional manner, a back(not shown), side walls 3 and 4, and an upper closing member 5 which allare stationary. The front part of the dishwasher includes a base portion6 having a projection 7. Projection 7 carries a pin 8 on which a doormember 9 is hinged along its bottom by means of members 9a secured todoor 9 and arranged to extend through appropriate slots so that eachmember 9a slides through its associated slot as door 9 ispivoted'aboutpin 8. In the closed position the door is, as shown,upright in a substantially vertical position. In this position, becausethe door is provided with suitable gasketing such as that shown at 10,it fits against the other stationary parts of the dishwasher to completean enclosure 11 within which the dishes are to be washed.

In order to gain access to the enclosure, the door section 9 is graspedby an upper handle portion 11a, and pivoted downwardly about pivot pin 8until it is substantially horizontal as shown in FIGURE 2.

An upper rack 12 and a lower rack 13 are positioned within the enclosure11 so as to support the dishes during a dishwashing operation in theenclosure. When door 9 is in its horizontal position, it forms a guideon which the lower rack 13 may be slid out for ready access and loading.When the door 9 is in its open position the upper rack 12 may also slideout; rack 12 slides on a track member 14 which in turn is mounted sothat it can slide out on a number of roller members 15 so as to beentirely outside the enclosure 3. In this manner, with door 9 open, bothracks 12 and 13 may be pulled out for loading and unloading and thenpushed back into the position shown in FIGURE 1 when a dishwashingoperation is to be provided.

Briefly continuing the description of dishwasher 1, it

may incorporate suitable washing means such as a lower rotatable waterejecting member 16 and an upper rotatable water ejecting member 17secured to the surface of tub closure member 5, together with arotatable telescoping spraying member 13, all three members being fedfrom a combination pumping and motor structure 19 so that once water isintroduced into the machine it is taken in by the pump-motor structurethrough suitable inlets (not shown) and is then ejected against thedishes with considerable force by the three water ejecting members so asto clean the dishes. The pump motor structure 19 conventionally may beof the type which, when rotated in one direction, provides theaforementioned cleaning action, and when rotated in the oppositedirection passes the water out to drain (not shown).

For drying the dishes after they have been cleansed, a suitable electricheating element 21 may be provided, with the intent being that element21 be energized at the end of the washing operation, and also during thewashing operation if so desired to assist in heating water.

It will be understood that the water introducing mechanism (which is notshown), the motor of the pump motor assembly 19, and the heating element21 are caused to operate by a suitable sequence control mechanismgenerally indicated by the numeral 22, so as toprovide in sequenceintroduction of water, ejection of water through the three members 16,17, and 18 into the enclosure 11 for a period of time, and draining ofthe water, to provide a first rinse; this is followed by as many rinsesas desired, a washing operation, and further rinses, the operation beingterminated with a heating step in which element 21 is energized in orderto dry the dishes. The sequence control assembly normally includes agear motor assembly 23 having an output shaft 24 on which a suitablenumber of cams (not shown) are provided for controlling theaforementioned elements of the dishwasher and the gear motor assembly 23itself in the desired sequence. This type of structure is entirelyconventional in the art and is for this reason not further describedherein. Such a timing mechanism generally has connected thereto by aone-way clutch (not shown) a suitable manually operable dial 25 so thatthe cams may be turned to a preset position 26 in which the timer motoris energized continuously and the other elements are energized in thedesired sequence; the timer motor then rotates the cams through acomplete cycle of operations as briefly described hereabove.

It will be observed from FIGURE 1 that the upper portion of door 9 isrelatively thick in order to accommodate the sequence control mechanism22 therewithin. Directly therebelow however the door ismade relativelythin so that its wall 26 provides in effect a recess in enclosure 11,and within this recess is a detergent dispensing assembly 27.

Detergent dispensing assembly 27 has a main stationary member 28 whichis rigidly secured to the inner surface of door 9. Member 28 includes anouter cover 29 (FIG- URE 3) together with side walls 30, 31, and 32.Together with the wall 26 to which it is secured, member 28 forms acomplete enclosure except at one side which has an opening formed toreceive the detergent container member 34 itself. As shown, the openingmay extend over part of the side otherwise enclosed by wall 32, thisbeing a conventional design feature usable where so desired for purposesof appearance, ease of manufacture, etc.

Member 34 is rigidly secured on a pin 35 pivotally mounted in thestationary member 28 of the detergent dispensing arrangement. Thecontainer member 34 has an inner compartment 36 separated from an outerwall 37 by a space 37a, the outer wall 37 forming the closure member forthe container when the container is pivoted clockwise to a positionwhere it is entirely within the member 28 beneath the cover 29. FIGURE 4shows the detergent container assembly with the container member 34pivoted to the closed position within member 28. As can be seen, themovement of the member 34 in the closing direction, as it moves withinthe member 28, is stopped at the appropriate place by engagement of wall37 against the edges of walls 30 and 32. It will be understood thatengagement of the outer wall 37 against the adjacent parts of member 28is such that when member 34 is pivoted to its closed position, as shownin FIGURE 4, a substantially complete enclosure is provided for thedetergent within enclosure 34.

In order to insure that the detergent in compartment 36 not beaccessible to liquid until the desired time, the compartment is formed,in effect, by a second wall 39 spaced from wall 37 by space 37a. Thus,when the detergent container member 34 is in its closed position withinthe stationary frame 28, the actual container compartment 36 isprotected by wall 39 so as to be in spaced relationship to all outerwalls. In this manner, water cannot splash into the detergentcompartment 36, nor is it likely to creep into the compartment bycapillary action as may happen if the spacing is not provided.

In essence, then, the detergent dispensing structure itself includes astationary frame member 28 with a cover 29 within which fits a movablestructure 34, so that the movable structure is entirely closed andprotected from water when it is within the member 28. When the movablestructure is in the outwardly pivoted position, as shown in FIGURE 3, itmay provide either one of two functions. When the door is in theposition shown in FIGURE 2, the compartment 36 is available so that asuitable treating agent such as powdered detergent may be poured into itwithout spilling, with the member 34 then being returned to its closedposition as will be more fully explained herebelow. On the'other hand,when the door 9 is in its vertical position, as shown in FIGURE 1, theopen position of the member 34, as shown in FIG- URE 3, will cause thedetergent within the compartment 36 to be thoroughly accessible to thewater being sprayed within enclosure 11 so that all detergent will beremoved from'compartment 36 and used during the washing operation.

It will further be noted that the stationary frame member 28 includes anopen recess 40 which may also be filled with detergent at the same timecompartment 36 is filled, that is, when the door is in the positionshown in FIGURE 2. It will readily be seen that when the door is pivotedupwardly to its closed position (FIGURE 1) the detergent in this openspace will enter the enclosure 11 and thus be used during the firstrinse operation. Thus, one load of detergent may, when so desired, beused for the first rinse, while the main load of detergent is retainedwithin the member 34 until its use is desired for the wash operation, aswill be more fully explained herebelow.

Referring now primarily to FIGURES 4 and 5, there is secured to thetimer output shaft 24, a member 41 which, while it is primarily a cammember and will be designated as such, also incorporates some aspects ofa segmental gear in that it has three gear teeth 42. Teeth 42 departfrom the conventional involute or epicyclic shape of gear teeth somewhatin that they are provided with pointed ends 43. Cam member 41 alsoincludes a recessed portion which may be denoted as an idler segment 44.Segment 44 is separated by a drop-off 45 from a raised portion, or resetsegment, 46. In other words, the

gear teeth 42 separate the idlersegment 44 from the reset segment 46 onone side, and the drop-off 45 separates the two segments at the otherside. conventionally, the assembly 23 is set so that the shaft 24 passessubstantially through a full circle during its complete cycle ofoperations which carries it from the beginning of a dishwashingoperation through the position where it shuts itself off. Since cammember 41 is driven by shaft 24, it also necessarily passes through afull revolution for each dishwashing operation.

As can best be seen by reference to FIGURE 6, the

pin 35 to which the detergent container member 34 is secured extendsthrough the recessed wall 26 of the dishwashing enclosure 11. Rotatablymounted on pin 35 outside the dishwashing enclosure is a membergenerally indicated by the numeral 47. While the mounting of this memberon pin 35 can best be seen in FIGURE 6, the member 47 itself, as to mostof the features of its configuration, can best be seen by reference toFIGURES 4 and 5. Member 47 is, in essence, formed as a segmental gearrotatable about pin 35 and provided with four teeth 48 of a type similarto teeth 42 provided on cam member 41. As with teeth 42, teeth 48preferably terminate substantially in points 49 for a purpose to befurther hereinafter described. Member 47 has, on the end 50 oppositeteeth 49, an opening 51 within which is secured one end of a spring 52.As shown in FIGURE 1, spring 52 is secured at its other end to a bracket53 forming part of the door structure. The spring 52 pulls on the member47 and biases it to the position shown in FIGURE 5, so that it restsagainst the stop member 54 mounted on the wall of the door.

What happens, in effect, is that the member 47 remains in that positionduring clockwise rotation of member 41, as the idler segment 44 ofmember 41 goes by. Then, when the gear teeth 42 come around, the teeth48 are engaged by the teeth 42. As the slow rotation of member .41continues in a clockwise direction, a counterclockwise motion of member47 results against the biasing action of spring 52. After the threeteeth 42 and curved surface 54a have moved past the member 47, as shownin FIG- URE 4, the member 47 is in the position shown and is thenretained in that position by engagement of one of the teeth 48 with thereset segment 46. In other words,

the uppermost tooth 48 of member 47 now acts as a cam follower insofaras movement of member 47 is concerned.

Thus, the member 41 cooperates with member 47 in two different ways.First they cooperate with each other 'as' gears so as to move member 47to a new position with a minimum of torque being required. This is animportant factor insofar as the small relatively weak timer motor isconcerned, otherwise a larger more expensive motor would be required.Then, for holding the member 47 in position, a camming operation isprovided. The member 47 is held in the position shown until resetsegment 46 moves by the tooth 48. When the drop-off 45 is reached, themember 47 snaps, under the influence of spring 52 against stop member54, in the position shown in FIG- URE 5.

As an important feature of my invention, the member 47 is connected tothe detergent dispensing container member 34 in such a manner as toactuate it when member 47 is moved. In order to effect this goal, asuitable clutch structure is provided which includes a member 55 (FIG-URES 6 and 7) rigidly keyed to the pin 35. Member 55 is provided with aslot 56 in which one end 57 of a helical spring 58 is secured. Thehelical spring has its other end 58a (FIGURE 6) secured in the member47.

Member 55 is provided with a dog 59 extending axially therefrom, and theinner portion 64) of member 47 also i has a'dog 61 which is arranged soas to be engaged by dog 6 is yielding enough to permit the dog 59 to bemoved clockwise away from the dog 61 through the space 62 when sodesired.

It will be recalled that the pin 35 is secured to the member 34; aprojection 63 may be provided on member 34 so that member 34 may readilybe grasped and rotated in a clockwise direction, as viewed in FIGURES 4and 5. Thus, when member 34 is in the closed postiion, it may be openedwithout regard to the position of member 47, because the dog 59 ismoving through the space 62. Of course, the spring 58 provides a forcetending to return the member 34 to the closed position when this occurs,but none the less an operator may, by a small force on projection 63,retain member 34 in the open position as shown in FIGURES 3 and 5.

With the foregoing structure in mind, the operation of my invention willbe explained. It will be understood that, just before the beginning of acycle of operation, the cam 41 is at the position shown in FIGURE 4,that is, with member 47 held in cocked position by reset segment 46. Itwill further be understood that with the member 47 in this position thespring 58 urges dog 59 against dog 61 and also urges the containermember 34 to its position within frame 28, that is, its closed position.Thus, the container 34 is resiliently held in its closed position byspring 58 and, when door 9 is opened as shown in FIG- URE 2 and soileddishes are loaded into the dishwasher, there is no danger of any of thesoil dropping oif the dishes to foul the interior compartment 36 ofmember 34. As shown in FIGURE 7 with member 34 in closed position andmember 47 in the cocked position of FIGURE 4, a small clearance spacemay exist between dogs 59 and 61. This clearance space is providedpurely for manufacturing convenience, to ensure that dog 59 may move tothe position where member 34 is entirely closed without requiring veryclose tolerances on the different cooperating parts.

It is a simple matter for the operator to open the member 34 bymanipulating handle projection 63 (as shown in FIGURE 3) and to hold themember 34 in the open position while loading detergent into thecompartment 36. When the full load of detergent has been poured intocompartment 36, the operator may then permit the spring 58 to returnmember 34 to the closed position within frame 28. It will thus be seenthat although, as will be more fully explained hereinbelow, the openingof member 34 is completely controlled by the timer operated mechanism soas to open at an exact desired time in a sequence of operations, it mayreadily be opened by the operator without any need for manipulation ofthe timer control dial 25.

To start a dishwashing openation, the operator, with the member 34 inits closed position, closes the door 9 and turns the dial 25 veryslightly so that the segment 46 moves a short distance along and inengagement with tooth 43. Accordingly, the Washing sequence starts witha first rinse. As previously described, during this first tr-inse, ilfthe open receptacle 4t) has been filled with detergent, a Washing actionwill be provided; otherwise, the first rinse merely provides for removalof particles of soil from the dishes by the force and the dissolvingaction of the water alone.

During the mitial rinses, the timer output shaft 24 rotates cam 41 andfinally, when the time for the washing operation to be provided isreached, the cam 41 has rotated to the point where the tooth 48 inengagement with segment 46 reaches the end of the segment, that is, thedrop-off 45. At this time, which may be carefully selected so as to beexactly appropriate, the spring 5-2 snaps the member 4'7 to the positionshown in FIGURE 5. At the same time, the positive engagement of dog 61moving clockwise against dog 59 snaps the member 34 from its closedposition to its open position. In this position, a mapor part of thedetergent fal ls out of compartment 36 because it is on the door 9, andthe door is in the 7 vertical position during use of the machine. Theremainder of the detergent is very quickly removed by the watersplashing into the open container. The container then remains openduring the period of rotation of cam 41 during which idler segment 44 ismoving past the member 47. This includes the end of the washingoperation, all subsequent rinses, and preferably at least part of adrying operation so as to dry completely the surface of the compartment36. At this point, it may be noted that, because the opening to theinterior of member 28 extends along part of wall 3 2, water may readilyenter the stationary member 28 during a washing operation so as to cleanit out.

After a suitable period has elapsed to allow drying of the container 36,the member 41 has rotated to a position where the teeth 42 engage theteeth 48. At this point, it should be stated that both sets of teeth arepointed so that in case of any misalignment of the teeth, that is, ifthe tips of the first two teeth should engage each other rather than thesides of the teeth, they will tend to slide off to one side or the otherbecause both teeth are pointed. This is an important feature where themotivating power is obtained by a small timer motor (such as thatgenerally commercially provided) where little power is available and themotor is readily stalled if two of the gear teeth should happen to jamagainst each other.

The teeth thus engage each other, and the member 47 is slowly moved tothe position shown in FIGURE 4. As the member 47 moves to that position,the spring 53 drives member 55 counterclockwise; thus, the member 34returns to its closed position as the member 47 moves to the position ofFIGURE 4.

At the end of the complete operation, the member 47 has returned to theposition shown in FIGURE 4 and the member 34 has returned to its closedposition with, however, the important feature that it may readily beopened by the operator simply by manipulation of projection 63, withoutany need of manipulation of control dial 25'.

It will be seen (from the foregoing that my' invention provides .animproved timer controlled detergent dispensing mechanism, particularlysuitable for a drop-door type dishwasher where the detergent dispenseris mounted on the door. The arrangement provides the advantage ofaccurate timing of the detergent dispensing without need for additionalelectrical devices. In addition, my invention provides a positive drivefor causing the container to be opened to dispense detergent at theappropriate time, and a yieldable closed position so that the operatormay open the container for the purpose of inserting detergent easily andquickly between cycles. At the same time, the normally closed positionof the member 34 means that the member is open only for providingdetergent therewithin and will not be affected by (food particles fromthe dishes dropping onto the dispenser. A further important point isthat the timer motor cannot be stalled even if an improperly placed dishshould either prevent the member 34 from opening or jam it in its openposition: in the latter event, member 34 will merely remain open, muchas if it were being pulled to open position as shown in FIGURE 3; in theformer event, member 47 will merely stay in that position of FIGURE 4,or close to that position, even though drop-oif 45 is reached.

While I have shown and described a particular em bodiment of myinvention, =1 do not desire the invention to be limited to the preciseconstruction disclosed, and I intend by the appended claims to cover allmodifications which fall within the true spirit and scope of myinvention.

What I claim as new and desire to secure by letters Patent of the UnitedStates is:

1. In a washing machine having a washing enclosure including a closuremember pivotable about its lower edge between a substantially verticalclosing position and a substantially horizontal open position, and asequence control assembly including a timer motor for operating saidassembly, the improvement in treating agent dispensing systemscomprising: cam means secured to said timer motor for operationtherebygfcam follower means; means biasing said cam follower means to afirst position, said cam follower means being movable by said camv meansto a second position; a treating agent container mounted on said closuremember and movable .between first and second positions, said containerin its first position being accessible to sprayed water within saidenclosure for deposition of agent in said enclosure when said closuremember is in its vertical position and [for filling when said closuremember is in its horizontal position, said container in its secondposit-ion enclosing the agent therein and isolating it from saidenclosure; a one-way clutch connecting said follower means to saidcontainer, said clutch being arranged to drive said container from itssecond position to its first position when said follower means movesfrom its second position to its first position; and spring meansarranged to yieldablly retain said container in its second position whensaid follower means is in its second position.

2. In a washing machine having awashing enclosure including a closuremember pivotable about its lower edge between a substantially verticalclosing position and a substantially horizontal open position, and asequence control assembly including a timer motor for operating saidassembly, the improvement in treating agent dispensing systemscomprising: cam means secured to said timer motor for operationthereby'; cam follower means; biasing means biasing said cam followermeans to a first position, said cam follower means being movable by saidcam means to a second position; a treating agent container assemblymounted on said closure member, said container assembly including astationary cover member secured to said closure member and a containermember movable between'first and second positions, said container memberin its first position being spaced from said cover member whereby it isaccessible to sprayed water in enclosure for deposition of agent in saidenclosure when said closure member is in its vertical position and forfilling when said closure member is in its horizontal position, saidcontainer member in its second position being beneath. said cover memberand closed thereby so as to be isolated rfirom said enclosure; a one-wayclutch con meeting said follower means to said container member, saidclutch being arranged to drive said container member firom its secondposition to its first position when said follower means moves from itssecond position to its first position; and spring means arranged toyieldably retain said container member in its second position when saidfollower means is in its second position.

3. The improvement defined in claim 2 wherein said container memberincludes a treating agent containing portion having two spaced wallsseparating it from said enclosure thereby to prevent capillary movementof Water from said enclosure to said containing portion prior tomovement of said container member to its first position.

4. The improvement defined in claim 2 wherein said container memberincludes a pin pivotably mounted to provide for pivoting motion of saidcontainer member, said conta ner member pivoting between its first andsecond positions.

5. The improvement defined in claim 1 wherein said cam follower meanscomprises a pivoted member having gear teeth, and said cam means hasgear teeth in at least one place around its periphery, said cam meansgear teeth and said pivoted member being arranged sothat said cam meansgear teeth move said pivoted member to its second position against thebiasing action thereon by said biasing means, said cam means having afirst segment adjacent said gear teeth positioned to retain said pivotedmember in its second position, said cam means also having a suddendrop-off from said first segment thereby to permit said pivoted memberto be rapidly returned to its first position by said biasing means.

6. The improvement defined in claim 5 wherein the gear teeth on bothsaid cam means and said pivoted member have pointed ends to preventstalling of said timer motor if the teeth of said cam means and saidpivoted member should engage each other incorrectly.

7. The improvement defined in claim 1 wherein said clutch includes afirst dog connected to said container and a second dog connected to saidfollower means, said follower means dog engaging and driving saidcontainer dog upon rotation in one direction but not in the otherdirection.

8. The improvement defined in claim 7 wherein said spring meanscomprises a spring connected to said dogs arranged to urge themtogether.

References Cited in the file of this patent UNITED STATES PATENTS

1. IN A WASHING MACHINE HAVING A WASHING ENCLOSURE INCLUDING A CLOSUREMEMBER PIVOTABLE ABOUT ITS LOWER EDGE BETWEEN A SUBSTANTIALLY VERTICALCLOSING POSITION AND A SUBSTANTIALLY HORIZONTAL OPEN POSITION, AND ASEQUENCE CONTROL ASSEMBLY INCLUDING A TIMER MOTOR FOR OPERATING SAIDASSEMBLY, THE IMPROVEMENT IN TREATING AGENT DISPENSING SYSTEMSCOMPRISING: CAM MEANS SECURED TO SAID TIMER MOTOR FOR OPERATION THEREBY;CAM FOLLOWER MEANS; MEANS BIASING SAID CAM FOLLOWER MEANS TO A FIRSTPOSITION, SAID CAM FOLLOWER MEANS BEING MOVABLE BY SAID CAM MEANS TO ASECOND POSITION; A TREATING AGENT CONTAINER MOUNTED ON SAID CLOSUREMEMBER AND MOVABLE BETWEEN FIRST AND SECOND POSITIONS, SAID CONTAINER INITS FIRST POSITION BEING ACCESSIBLE TO SPRAYED WATER WITHIN SAIDENCLOSURE FOR DEPOSITION OF AGENT IN SAID ENCLOSURE WHEN SAID CLOSUREMEMBER IS IN ITS VERTICAL POSITION AND FOR FILLING WHEN SAID CLOSUREMEMBER IS IN ITS HORIZONTAL POSITION, SAID CONTAINER IN ITS SECONDPOSITION ENCLOSING THE AGENT THEREIN AND ISOLATING IT FROM SAIDENCLOSURE; A ONE-WAY CLUTCH CONNECTING SAID FOLLOWER MEANS TO SAIDCONTAINER, SAID CLUTCH BEING ARRANGED TO DRIVE SAID CONTAINER FROM ITSSECOND POSITION TO ITS FIRST POSITION WHEN SAID FOLLOWER MEANS MOVESFROM ITS SECOND POSITION TO ITS FIRST POSITION; AND SPRING MEANSARRANGED TO YIELDABLY RETAIN SAID CONTAINER IN ITS SECOND POSITION WHENSAID FOLLOWER MEANS IS IN ITS SECOND POSITION.